9/11 mastermind, 4 other Guantanamo Bay detainees seen smiling during first group court appearance in 500 days
September 07, 2021 at 13:46 PM EDT
Khalid Sheik Mohammad, the accused mastermind behind the Sept. 11, 2001, terror attacks, and four other high-profile detainees at the United State's detention center in Guantanamo Bay, Cuba, resumed pretrial headings Tuesday.
